Ernst Ruska

Ernst Ruska was, for all intents and purposes the inventor of the Electron Microscope. He designed and built many such machines over his long life, starting in the university Berlin, and later working for Siemens where he created the famous Elmiskop Series.

He invented the Transmission electron microscope together with his friend Bodo von Borries and Max Knoll.

papers

• Ein hochauflösendes 100-KV-Elektronenmikroskop mit Kleinfelddurchstahlung - 1955

Transmission Electron Microscopes

University Berlin

These where the devices and Microscopes created by Ernst Ruska during his time at the University of Berlin.

High Speed Oscillograph Electron Source
	General Year 1933 Successor Prototype 1 Magnification Range N/A Magnification Gauge Type N/A Specemin Chamber Pressure 1e⁻3 Torr Power Consumption System Weight	Electrion Source Accelerator Type Kanalstrahlrohr Cathode Type Gas Discharge Accelerating Voltage 75 KV Stability Cathode Heating Methode Ion Bombardment Alignment Methode	Condensor Number of Condensor Lenses 2 Stability Stigmator Minimum Spot Size Diameter Condensor Alignment Lens Type Electromagnetic	Stage Holder Type N/A X, Y Travel Range N/A	Objective Lens Focal Length N/A Adjustment Range N/A Spherical Error N/A Stability N/A Stigmator N/A Alignment Aids N/A Point Resolution N/A Å Lens Type N/A	Projective Lens Number of Projective Lens N/A Stability N/A Polpeace Configuration N/A Avalible Polpeace Magnification(s) N/A Alignment N/A Lens Type N/A

Prototyp 1
	General Year 1933 Successor Prototype 2 Magnification Range Magnification Gauge Type Specemin Chamber Pressure 1e-3 Torr Power Consumption System Weight	Electrion Source Accelerator Type Kanalstrahlrohr Cathode Type Gas Discharge Accelerating Voltage 75 KV Stability Cathode Heating Methode Ion Bombardment Alignment Methode	Condensor Number of Condensor Lenses 1 Stability Stigmator Minimum Spot Size Diameter Condensor Alignment Lens Type Electromagnetic	Stage Holder Type Cartridge, Top Entry X, Y Travel Range	Objective Lens Focal Length Adjustment Range Spherical Error Stability Stigmator Alignment Aids Point Resolution 500 Å Å Lens Type Electromagnetic	Projective Lens Number of Projective Lens 1 Stability Polpeace Configuration Single Polpiece Avalible Polpeace Magnification(s) Alignment Lens Type Electromagnetic